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Shift solenoids

Tiny
MARKSDISCORD
  • MEMBER
  • 2003 HONDA ACCORD
  • 97,000 MILES
I have a 2003 Honda accord v6 automatic. I'm no slouch when it comes to mechanics. I know enough to keep me out of trouble. But for the life of me I can't find a schematic or parts layout for my automatic transmission. I've replaced the speed sensor when it went out and that was because I ordered the part and looked for its bad counterpart in my car to replace it. Right now I'm facing the problem with third gear not engaging properly. I've narrowed the problem down to a malfunctioning solenoid. But witch one? It has solenoids all over the transmission. But only one is bad. Part stores only list two parts. Solenoid A and the part with the two solenoids on a plate. Mechanically there is no grinding or chatter. The transmission fluid (upon removal. Cleaning and reinstalling the plate with the two solenoids on it) has a very light contamination of a graphite like flotsom. Not thick or black. And no metal flakes. My questions where can I get a schematic and parts description for my transmission. And to rule out the potential answer. Haynes guide is useless and chiltons only covers fluid change.
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Saturday, August 17th, 2013 AT 3:19 PM

40 Replies

Tiny
DRCRANKNWRENCH
  • MECHANIC
  • 3,380 POSTS
I am attaching all the instructions and diagrams I have. You might try pulling the trouble codes and that may help you identify the solenoid in question.

Check the diagrams at the end they show the solenoids
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Saturday, August 17th, 2013 AT 5:40 PM
Tiny
DRCRANKNWRENCH
  • MECHANIC
  • 3,380 POSTS
One more diagram
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Saturday, August 17th, 2013 AT 5:41 PM
Tiny
MARKSDISCORD
  • MEMBER
  • 4 POSTS
Thank you. Tonight I changed the transmission fluid with some success. Second to third gear shift is working better. Not perfect. But should buy me some time to get the parts and study the information you gave me. First order on the list is to get the radio code. The strange part about all this is so far I haven't gotten so much as a check engine light. No emergency indicators. No error lights at all. Will have to find someone with a code reader to see if anything comes up.
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Saturday, August 17th, 2013 AT 7:52 PM
Tiny
MARKSDISCORD
  • MEMBER
  • 4 POSTS
Yea every part of the operation of the transmission works great but the shift from second to third went to pot. After the fluid change and removal and cleaning of the top solenoid plate (the dual near the speed sensor) I have third gear again. With intermittent errors in shifting.
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Saturday, August 17th, 2013 AT 7:55 PM
Tiny
DRCRANKNWRENCH
  • MECHANIC
  • 3,380 POSTS
Even though a check engine light does not come up it does not mean you don't have trouble codes in the ECU. See if Advance Auto ro Auto Zone has an OBD reader to loan out. You can inquire at their parts counter. I was looking more after I sent you the message and found that the solenoids are refered to by letter, at least in this manual, and I have some information on solenoids A though C and some on D. So if you come across anything that refers to them by letter I can give you some more information.
Changing the fluid can get a sticky solenoid to loosened up as the port holes and tolerances are tight and collect contaminants easily. So, a fluid, and filter if applicable, will sometimes loosen up a sticky solenoid and fix the problem with a little time.
Let me know how it goes and if I can be of any further help.
Take Care.
Dr. C
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Saturday, August 17th, 2013 AT 8:19 PM
Tiny
MARKSDISCORD
  • MEMBER
  • 4 POSTS
Still having difficulty shifting into third. Sometimes it shifts. Sometimes it's delayed. Sometimes it hangs. I'm still sure it's the solenoid. Now which one.
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Monday, August 19th, 2013 AT 6:56 PM
Tiny
DRCRANKNWRENCH
  • MECHANIC
  • 3,380 POSTS
I cannot give you anymore information than I have. Sometimes companies like Honda won't release all their information because it is proprietary. My suggestion would be to call a Honda parts dealer and get the parts department to tell you if solenoids are designated by a letter and if so which one is it that you need to replace.
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Thursday, August 29th, 2013 AT 6:46 PM
Tiny
BMC918CAN
  • MEMBER
  • 1 POST
Mine was doing the same thing, threw a solenoid A code. I checked 5 of the 6 solenoid a, all were good. Decided to change the inline filter(just to the right of the plate with 2 solenoids and the 11/16 bolt that sends fluid down the black rod to the transmission had a piece of the orange porcelain from the filter lodged in it. The filter had broken away on one end from the metal of the filter. You can't really see it, but lip of the 11/16 bolt on the inside scaring from that piece of porcelain rubbing.
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Wednesday, December 9th, 2015 AT 2:13 PM
Tiny
RGOLOBIC
  • MEMBER
  • 8 POSTS
  • 2002 HONDA ACCORD
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 127,000 MILES
2002 Honda Accord 3.0 V6 Engine code P0780 - Everybody say Transmission rebuild? What Can I try before I have to commit to $3000 Dollars. Or can I tests some shift solenoid and figure out which one is the issues. And should I do a Power flush of the transmission?

Ryan
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Thursday, January 21st, 2021 AT 1:45 PM (Merged)
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
That code is hydraulic failure if no other codes try replacing Lock up control solenoid valve"A" assembly and A/T Clutch Pressure Control Solenoid Valve "A/B"Assembly no gauranty it will solve
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Thursday, January 21st, 2021 AT 1:45 PM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
DTC P0780/45: MECHANICAL FAULT IN HYDRAULIC SYSTEM
NOTE:
DO NOT perform this DTC test until all other DTCs have been
repaired first.

1. Using scan tool, retrieve freeze data. Clear DTCs and road test vehicle under same conditions freeze data was recorded. If DTC returns, go to next step. If DTC does not return, problem is intermittent. Check transaxle and PCM connections.

2. Using scan tool, check for any other DTCs. If any other DTCs are present, repair those DTCs first, then recheck for DTC P0780/45. If no other DTCs are present, go to next step.

3. Replace lock-up control solenoid valve/shift control solenoid valve "A" assembly and A/T clutch pressure control solenoid valve "A"/"B"assembly. See LOCK-UP CONTROL SOLENOID VALVE/SHIFT CONTROL SOLENOID VALVE "A" ASSEMBLY and A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE "A"/"B" ASSEMBLY under REMOVAL & INSTALLATION.

4. Clear DTCs. Road test vehicle for several minutes in "D4" position. Ensure transaxle shifts into all gears. Recheck DTCs. If DTC P0780/45 returns, replace transaxle. If DTC P0780/45 does not return, system is okay.
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Thursday, January 21st, 2021 AT 1:45 PM (Merged)
Tiny
RGOLOBIC
  • MEMBER
  • 8 POSTS
How about the Linear Soleniod? Or would that not be necessary? Also, I can change these with out removing the transmission for the car right? And do I need to replace the transmission fluid or remove it to do this? And what should I look for?
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Thursday, January 21st, 2021 AT 1:45 PM (Merged)
Tiny
RGOLOBIC
  • MEMBER
  • 8 POSTS
The part number I have are for both is 28400-P6h-013. Is this the correct ones.
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Thursday, January 21st, 2021 AT 1:45 PM (Merged)
Tiny
RGOLOBIC
  • MEMBER
  • 8 POSTS
The code comes up intermitantly. Does not happen all the time? The code was clear one week ago and has not returned yet!
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Thursday, January 21st, 2021 AT 1:45 PM (Merged)
Tiny
TRASHDADDY
  • MEMBER
  • 1 POST
  • 2002 HONDA ACCORD
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 110,000 MILES
Will replacing the part fix the problem diagnostic code 0753 drive 4 is flashing and what is the part number for the part
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Thursday, January 21st, 2021 AT 1:45 PM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
DTC P0730/41: SHIFT CONTROL SYSTEM

NOTE:
Do not perform this DTC test until all other DTCs have been repaired first.

1. Using scan tool, retrieve freeze data. Clear DTCs and road test vehicle under same conditions freeze data was recorded. If DTC returns, go to next step. If DTC does not return, problem is intermittent. Check transaxle and PCM connections.

2. Road test vehicle at greater than 12 MPH for more than 30 seconds in 2nd, 3rd and 4th gear. Using scan tool, check for any other DTCs. If any other DTCs are present, repair those DTCs first, and then recheck for DTC P0730/41. If no other DTCs are present, go to next step.

3. Test clutch pressure. If clutch pressure is within specification, go to next step. If clutch pressure is not within specification, repair hydraulic system as necessary.

4. Replace lock-up control solenoid valve/shift control solenoid valve "A" assembly and shift control solenoid valves "B" and "C". Turn ignition off and clear DTCs. Road test vehicle at greater than 12 MPH for more than 30 seconds in 2nd, 3rd and 4th gear. Recheck DTCs. If DTC P0730/41 returns, replace transaxle. If DTC P0730/41 does not return, system is okay.
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Thursday, January 21st, 2021 AT 1:45 PM (Merged)
Tiny
RGOLOBIC
  • MEMBER
  • 8 POSTS
And By the way, This has been a problem since about February when it first appeared.
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Thursday, January 21st, 2021 AT 1:45 PM (Merged)
Tiny
RGOLOBIC
  • MEMBER
  • 8 POSTS
The part number I have are for both is 28400-P6h-013. Is this the correct ones. This is wrong. 28400-p6h-013 and 28500-p6h-013 o are the part numbers I have.
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Thursday, January 21st, 2021 AT 1:45 PM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
I could not find the part in our database so is unable to verify if it is correct.

It is not a fault with the linear solenoid. That would cause harsh shifting.
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Thursday, January 21st, 2021 AT 1:45 PM (Merged)
Tiny
LOOMIETUNE
  • MEMBER
  • 1 POST
  • 2000 HONDA ACCORD
Transmission problem
2000 Honda Accord 4 cyl Front Wheel Drive Automatic 68 800 miles

my jerks everytime switching from 1st to 2nd.I replaced all the mounts and it has changed a lil bit but still has a jerk jerk. Can it be the shift solenoid or anything else?
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Thursday, January 21st, 2021 AT 1:45 PM (Merged)

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